diff options
| -rw-r--r-- | src/udiskslinuxdriveata.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/src/udiskslinuxdriveata.c b/src/udiskslinuxdriveata.c index 9148dee..444acc1 100644 --- a/src/udiskslinuxdriveata.c +++ b/src/udiskslinuxdriveata.c @@ -88,6 +88,8 @@ struct _UDisksLinuxDriveAta UDisksThreadedJob *selftest_job; gboolean secure_erase_in_progress; + unsigned long drive_read, drive_write; + gboolean standby_enabled; }; struct _UDisksLinuxDriveAtaClass @@ -463,6 +465,32 @@ static gboolean get_pm_state (UDisksLinuxDevice *device, GError **error, guchar return rc; } +static gboolean update_io_stats (UDisksLinuxDriveAta *drive, UDisksLinuxDevice *device) +{ + const gchar *drivepath = g_udev_device_get_sysfs_path (device->udev_device); + gchar statpath[PATH_MAX]; + unsigned long drive_read, drive_write; + FILE *statf; + gboolean noio = FALSE; + snprintf (statpath, sizeof(statpath), "%s/stat", drivepath); + statf = fopen (statpath, "r"); + if (statf == NULL) + { + udisks_warning ("Failed to open %s\n", statpath); + } + else + { + fscanf (statf, "%lu %*u %*u %*u %lu", &drive_read, &drive_write); + fclose (statf); + noio = drive_read == drive->drive_read && drive_write == drive->drive_write; + udisks_debug ("drive_read=%lu, drive_write=%lu, old_drive_read=%lu, old_drive_write=%lu\n", + drive_read, drive_write, drive->drive_read, drive->drive_write); + drive->drive_read = drive_read; + drive->drive_write = drive_write; + } + return noio; +} + /** * udisks_linux_drive_ata_refresh_smart_sync: * @drive: The #UDisksLinuxDriveAta to refresh. @@ -556,11 +584,14 @@ udisks_linux_drive_ata_refresh_smart_sync (UDisksLinuxDriveAta *drive, else { guchar count; + gboolean noio = FALSE; if (!get_pm_state(device, error, &count)) goto out; awake = count == 0xFF || count == 0x80; + if (drive->standby_enabled) + noio = update_io_stats (drive, device); /* don't wake up disk unless specically asked to */ - if (nowakeup && !awake) + if (nowakeup && (!awake || noio)) { g_set_error (error, UDISKS_ERROR, @@ -634,6 +665,8 @@ udisks_linux_drive_ata_refresh_smart_sync (UDisksLinuxDriveAta *drive, update_smart (drive, device); ret = TRUE; + /* update stats again to account for the IO we just did to read the SMART info */ + update_io_stats (drive, device); out: g_clear_object (&device); @@ -1660,6 +1693,7 @@ apply_configuration_thread_func (gpointer user_data) udisks_notice ("Set standby timer to %s (value %d) on %s [%s]", pretty, data->ata_pm_standby, device_file, udisks_drive_get_id (data->drive)); g_free (pretty); + data->ata->standby_enabled = data->ata_pm_standby != 0; } } |